​Vital statistics

There are 533 English constituencies. (Vote Swap does not cover Scotland, Wales or Northern Ireland).

Based on a mix of surveys and sources, we have identified:

In total, we identify 131 seats where Labour needs every vote to win or hold the seat, and 370 seats in which there is little or no doubt about whether Labour wins or loses. So there are 131 seats in which Green supporters should seek to swap their vote. And 370 seats where Labour voters should look for a vote swap.

That way Green voters in battleground seats can help beat a Tory without harming their own party’s vote share. And Labour voters in safe seats can – sometimes for the first time – cast their vote in a way that will affect the outcome.